Home / 25,987.53-38,985.37-8,453.25

Finding the Fourth Proportional to 25,987.53, 38,985.37 and 8,453.25

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Solution

The fourth proportional to 25,987.53, 38,985.37 and 8,453.25 is: 12,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,987.53 : 38,985.37 = 8,453.25 : x
  2. Step 2: Convert to fraction form
    25,987.53/38,985.37 = 8,453.25/x
  3. Step 3: Cross multiply
    25,987.53x = 38,985.37 × 8,453.25
  4. Step 4: Simplify right side
    25,987.53x = 329,553,078.95
  5. Step 5: Solve for x
    x = 329,553,078.95/25,987.53
  6. Step 6: Final answer
    x = 12,681.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.